The term fever describes a body temperature that is higher than normal. According to the Mayo Clinic, normal body temperature is typically 37 degrees C, or 98.6 degrees F, though this can vary. A short-term increase in body temperature can help th...

A cough is a common reflex action that aims to clear the throat of mucus or foreign irritants. Coughing to clear the throat is typically an infrequent action, although there are a number of other conditions that can cause more frequent bouts of co...

Chest pain is one of the most common reasons that people ages 15 and older visit the emergency room in the U.S. Chest pain varies from person to person. It may feel like a sharp, stabbing pain or a dull ache. While chest pain may be a sign of a se...

Unintentional weight loss is the process of losing weight without dieting or increasing physical activity. It may occur following a loss of appetite or when you are consuming the same amount of calories as usual. Either way, it is usually cause fo...

It is normal to have periods of low energy when one needs to rest and recuperate. However, if low energy persists and a person continually feels sluggish, disinterested in life, and has low energy, the situation should be investigated by a physician.